Tags » Antigen
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At some point in your life, you’ve probably been asked to donate blood. If your blood is type O, you may have been asked to donate even more, because your blood type is the most useful and is less common.
Antibodies are host proteins that serve as the first response to the immune system and comprise the principal effectors of the adaptive immune system. They are produced in response to molecules and organisms, which they ultimately neutralize or eliminate. 251 more words